We're dividing 66294016 by 256 
The aim is to understand the frequency of 256 in 66294016.

Step 1:
The number 256 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 256

On to step 2:
66 divided by 256 is 0 with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Include the next digit (2) from the dividend after 66, then repeat: 662 / 256

Let's proceed to step 3:
If we divide 662 by 256, we get 2 and a remainder of 150.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 512 from 662, we get 150.
Take the next digit (9) from the dividend and append it to 150, then repeat: 1509 / 256

Step 4:
If we divide 1509 by 256, we get 5 and a remainder of 229.
Write down 5 as next digit of the result. 
Result so far: 25.0
If we subtract 1280 from 1509, we get 229.
Append the next digit (4) from the dividend to 229 and continue with: 2294 / 256

Moving on to step 5:
256 goes into 2294 8 times with a remainder of 246.
The next digit of our result is 8. 
Result so far: 258.0
Subtracting 2048 from 2294 leaves us with 246.
Grab the next digit (0) from the dividend, add it to 246, then carry on: 2460 / 256

Moving on to step 6:
2460 divided by 256 is 9 with a remainder of 156.
Put 9 as the next digit of the answer. 
Result so far: 2589.0
Subtracting 2304 from 2460 leaves us with 156.
Append the next digit (1) from the dividend to 156 and continue with: 1561 / 256

Going ahead to step 7:
256 can be fit into 1561 6 times, resulting in a remainder of 25.
Record the quotient 6 as the next digit in the result. 
Result so far: 25896.0
Subtract 1536 from 1561 to get 25.
Grab the next digit (6) from the dividend, add it to 25, then carry on: 256 / 256

On to step 8:
256 goes into 256 1 times with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 258961.0
Deduct 256 from 256 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
0 divided by 256 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 258961.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
When dividing 0 by 256, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 258961.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 258961.0, and the remainder is 0.0.